Texas Instruments SN74HC646DWR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.47 | $1.47 |
| 15+ | $1.43 | $21.45 |
| 25+ | $1.40 | $35.00 |
| 50+ | $1.32 | $66.00 |
| 100+ | $1.16 | $116.00 |
| N+ | $0.23 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74HC |
| Packaging | Marketplace | Cut Tape (CT) |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 24-SOIC |
| ROHS |
The SN74HC646DWR from Texas Instruments is a versatile non-inverting transceiver from the 74HC logic family. It features one channel with 3-State outputs, capable of sourcing or sinking 7.8mA. Operating from a wide 2V to 6V supply, this 24-pin SOIC device is ideal for level shifting and bidirectional data transfer in mixed-voltage systems. Its low power consumption and wide temperature range (-40°C to 85°C) make it suitable for portable, industrial, and automotive applications.
- Wide 2V to 6V Supply Range: Compatible with 3.3V and 5V systems, simplifying design.
- Bidirectional Operation: Facilitates data flow in both directions on a single bus.
- Low Power CMOS: Ideal for battery-powered applications.
- 3-State Outputs: Allows multiple devices to share the bus safely.
Mixed-Voltage Level Shifting
Use the SN74HC646DWR to interface between 3.3V and 5V systems, thanks to its 2V to 6V operating range.
Bidirectional Data Bus
Implement a bidirectional data bus between two microcontrollers or a microcontroller and memory, with direction controlled by the DIR pin.
Low-Power Portable Devices
In battery-powered equipment, buffer data lines while consuming minimal power, characteristic of CMOS logic.
Industrial Sensor Networks
Buffer communication lines in industrial sensor networks, operating reliably over a wide temperature range.
FPGA/CPLD Interfacing
Connect FPGAs operating at 3.3V to 5V peripherals, providing a robust buffered interface.
Automotive Electronics
Use in automotive ECUs for data transfer between modules, benefiting from its wide voltage tolerance and temperature range.
- Q: What is the logic family of the SN74HC646DWR?
- A: It belongs to the 74HC family, offering high-speed CMOS with wide voltage operation.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with 1 channel, supporting bidirectional data flow.
- Q: What is the output type?
- A: It features 3-State outputs for bus sharing.
- Q: What is the voltage range?
- A: It operates from 2V to 6V, making it versatile for various logic levels.
- Q: What is the package?
- A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.
- Q: What is the output current?
- A: It can source and sink 7.8mA.
- Q: What is the logic family of the SN74HC646DWR?
- A: It belongs to the 74HC family, offering high-speed CMOS with wide voltage operation.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with 1 channel, supporting bidirectional data flow.
- Q: What is the output type?
- A: It features 3-State outputs for bus sharing.
- Q: What is the voltage range?
- A: It operates from 2V to 6V, making it versatile for various logic levels.
- Q: What is the package?
- A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.
- Q: What is the output current?
- A: It can source and sink 7.8mA.

SN74HC646DWR.pdf